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psalm/tests/Internal/Codebase/InternalCallMapHandlerTest.php
2022-06-15 13:28:09 +02:00

324 lines
10 KiB
PHP

<?php
namespace Psalm\Tests\Internal\Codebase;
use Psalm\Codebase;
use Psalm\Internal\Analyzer\ProjectAnalyzer;
use Psalm\Internal\Codebase\InternalCallMapHandler;
use Psalm\Internal\Codebase\Reflection;
use Psalm\Internal\Provider\FakeFileProvider;
use Psalm\Internal\Provider\Providers;
use Psalm\Internal\Type\Comparator\UnionTypeComparator;
use Psalm\Tests\Internal\Provider\FakeParserCacheProvider;
use Psalm\Tests\TestCase;
use Psalm\Tests\TestConfig;
use Psalm\Type;
use ReflectionFunction;
use ReflectionParameter;
use ReflectionType;
use Throwable;
use function count;
use function explode;
use function function_exists;
use function implode;
use function in_array;
use function json_encode;
use function preg_match;
use function print_r;
use function strncmp;
use function strpos;
use function substr;
class InternalCallMapHandlerTest extends TestCase
{
/**
* @var string[]
*/
private static $ignoredFunctions = [
'sprintf', 'printf', 'ctype_print', 'date_sunrise' /** deprecated in 8.1 */,
'file_put_contents',
'dom_import_simplexml', 'imagegd', 'imagegd2', 'mysqli_execute', 'array_multisort',
'intlcal_from_date_time', 'simplexml_import_dom', 'imagefilledpolygon',
/** deprecated in 8.0 */
'zip_entry_close',
'date_time_set',
'curl_unescape',
'extract',
'enum_exists',
'igbinary_unserialize',
'count',
'lzf_compress',
'long2ip',
'array_column',
'preg_replace_callback_array',
'preg_filter',
'zlib_encode',
'inotify_rm_watch',
'mail',
'easter_date',
'date_isodate_set',
'snmpset',
'get_class_methods',
'filter_var_array',
'deflate_add',
'bzdecompress',
'substr_replace',
'lzf_decompress',
'mongodb\bson\tophp',
'fputcsv',
'get_headers',
'get_parent_class',
'filter_var',
'array_key_exists',
'sapi_windows_cp_get',
'stream_select',
];
/**
* @var string[]
*/
private static $ignoredPrefixes = [
'apcu_',
'bc',
'collator_',
'ctype_',
'datefmt_',
'enchant_',
'gmp_',
'gnupg_',
'image',
'imap_',
'inflate_',
'intl',
'ldap_',
'mailparse_',
'memcache_',
'msg_',
'mysqli_',
'normalizer_',
'oauth_',
'oci',
'odbc_',
'openssl_',
'pg_',
'sem_',
'shm_',
'shmop_',
'snmp_',
'socket_',
'sodium_',
'sqlsrv_',
'tidy_',
'transliterator_',
'uopz_',
'xdiff_',
'xmlrpc_server',
'yaml_',
];
/**
* Initialized in setup
* @var string Regex
*/
private static $prefixRegex = '//';
/**
*
* @var bool whether to skip params for which no definition can be found in the callMap
*/
private $skipUndefinedParams = false;
/**
*
* @var Codebase
*/
private static $codebase;
public static function setUpBeforeClass(): void
{
self::$prefixRegex = '/^(' . implode('|', self::$ignoredPrefixes) . ')/';
$project_analyzer = new ProjectAnalyzer(
new TestConfig(),
new Providers(
new FakeFileProvider(),
new FakeParserCacheProvider()
)
);
self::$codebase = $project_analyzer->getCodebase();
}
public static function tearDownAfterClass(): void
{
self::$codebase = null;
}
/**
* @covers \Psalm\Internal\Codebase\InternalCallMapHandler::getCallMap
*/
public function testGetcallmapReturnsAValidCallmap(): void
{
$callMap = InternalCallMapHandler::getCallMap();
self::assertArrayKeysAreStrings($callMap, "Returned CallMap has non-string keys");
self::assertArrayValuesAreArrays($callMap, "Returned CallMap has non-array values");
foreach ($callMap as $function => $signature) {
self::assertArrayKeysAreZeroOrString($signature, "Function " . $function . " in returned CallMap has invalid keys");
self::assertArrayValuesAreStrings($signature, "Function " . $function . " in returned CallMap has non-string values");
foreach ($signature as $type) {
self::assertStringIsParsableType($type, "Function " . $function . " in returned CallMap contains invalid type declaration " . $type);
}
}
}
/**
*
* @return iterable<string, list>
*/
public function callMapEntryProvider(): iterable
{
$project_analyzer = new ProjectAnalyzer(
new TestConfig(),
new Providers(
new FakeFileProvider(),
new FakeParserCacheProvider()
)
);
$callMap = InternalCallMapHandler::getCallMap();
foreach ($callMap as $function => $entry) {
// Skip class methods
if (strpos($function, '::') !== false || !function_exists($function)) {
continue;
}
// Skip functions with alternate signatures
if (isset($callMap["$function'1"]) || preg_match("/\'\d$/", $function)) {
continue;
}
// if ($function != 'fprintf') continue;
yield "$function: " . json_encode($entry) => [$function, $entry];
}
}
/**
* This function will test functions that are in the callmap AND currently defined
* @coversNothing
* @depends testGetcallmapReturnsAValidCallmap
* @dataProvider callMapEntryProvider
*/
public function testCallMapCompliesWithReflection(string $functionName, array $callMapEntry): void
{
if (!function_exists($functionName)) {
$this->markTestSkipped("Function $functionName does not exist");
}
if (in_array($functionName, self::$ignoredFunctions)) {
$this->markTestSkipped("Function $functionName is ignored in config");
}
if (preg_match(self::$prefixRegex, $functionName)) {
$this->markTestSkipped("Function $functionName has ignored prefix");
}
$this->assertEntryIsCorrect($callMapEntry, $functionName);
}
private function assertEntryIsCorrect(array $callMapEntry, string $functionName): void
{
$rF = new ReflectionFunction($functionName);
// For now, ignore return types.
unset($callMapEntry[0]);
/**
* Parse the parameter names from the map.
* @var array<string, array{byRef: bool, refMode: 'rw'|'w', variadic: bool, optional: bool, type: string}
*/
$normalizedEntries = [];
foreach ($callMapEntry as $key => $entry) {
$normalizedKey = $key;
$normalizedEntry = [
'variadic' => false,
'byRef' => false,
'optional' => false,
'type' => $entry,
];
if (strncmp($normalizedKey, '&', 1) === 0) {
$normalizedEntry['byRef'] = true;
$normalizedKey = substr($normalizedKey, 1);
}
if (strncmp($normalizedKey, '...', 3) === 0) {
$normalizedEntry['variadic'] = true;
$normalizedKey = substr($normalizedKey, 3);
}
// Read the reference mode
if ($normalizedEntry['byRef']) {
$parts = explode('_', $normalizedKey, 2);
if (count($parts) === 2) {
$normalizedEntry['refMode'] = $parts[0];
$normalizedKey = $parts[1];
} else {
$normalizedEntry['refMode'] = 'rw';
}
}
// Strip prefixes.
if (substr($normalizedKey, -1, 1) === "=") {
$normalizedEntry['optional'] = true;
$normalizedKey = substr($normalizedKey, 0, -1);
}
$normalizedEntry['name'] = $normalizedKey;
$normalizedEntries[$normalizedKey] = $normalizedEntry;
}
foreach ($rF->getParameters() as $parameter) {
if ($this->skipUndefinedParams && !isset($normalizedEntries[$parameter->getName()])) {
continue;
} else {
$this->assertArrayHasKey($parameter->getName(), $normalizedEntries, "Callmap is missing entry for param {$parameter->getName()} in $functionName: " . print_r($normalizedEntries, true));
}
$this->assertParameter($normalizedEntries[$parameter->getName()], $parameter, $functionName);
}
}
/**
*
* @param array{byRef: bool, refMode: 'rw'|'w', variadic: bool, optional: bool, type: string} $normalizedEntry
*/
private function assertParameter(array $normalizedEntry, ReflectionParameter $param, string $functionName): void
{
$name = $param->getName();
// $identifier = "Param $functionName - $name";
try {
$this->assertSame($param->isOptional(), $normalizedEntry['optional'], "Expected param '{$name}' to " . ($param->isOptional() ? "be" : "not be") . " optional");
$this->assertSame($param->isVariadic(), $normalizedEntry['variadic'], "Expected param '{$name}' to " . ($param->isVariadic() ? "be" : "not be") . " variadic");
$this->assertSame($param->isPassedByReference(), $normalizedEntry['byRef'], "Expected param '{$name}' to " . ($param->isPassedByReference() ? "be" : "not be") . " by reference");
} catch (Throwable $t) {
$this->markTestSkipped("Exception: " . $t->getMessage());
}
$expectedType = $param->getType();
if (isset($expectedType)) {
$this->assertTypeValidity($expectedType, $normalizedEntry['type'], "Param '{$name}' has incorrect type");
}
}
/**
* Since string equality is too strict, we do some extra checking here
*/
private function assertTypeValidity(ReflectionType $reflected, string $specified, string $message): void
{
$expectedType = Reflection::getPsalmTypeFromReflectionType($reflected);
$parsedType = Type::parseString($specified);
$this->assertTrue(UnionTypeComparator::isContainedBy(self::$codebase, $parsedType, $expectedType), $message);
}
}